Improved apparatus for carbureting air



W1 T/VE-S $155 H. L. MQAVOY.

Carburetor.

Patented Nov. 22, 1864.

STATES Parent @lhtlfillh HUGH L. MCAVOY, OF BALTIMORE, MARYLAND, ASSIGNOR TO HIMSELF AND ELIAS S. HUTGIIINSON.

llVlPHOVED APPARATUS FOR. CARBURETING AlPi.

Specification forming part of Letters Patent No. d5.il'fi, dated November 22, 1864.

T0 aZZ whom it may concern.-

Be itknowu that I, HUGH L. MCAVOY, of the city and county of Baltimore, in the State of Maryland, have invented anew and useful Improvement in the Generators of Air-Gas Apparatuses and Ido hereby declare the following to be a full and exact description of the same, reference being had to the accompanying drawings, making part of this specification, in which Figure 1 is a plan of an apparatus embodying my invention. Fig. 2 is avertical section in the line 00 00, this figure also illustrating the employment of weights for regulating the descent of the air-holder.

Similar letters of reference indicate corre sponding parts in the two figures.

Mypresent invention relates to an apparatus in which gas is generated by the carbonization of air, which is effected by causing the air to first permeate and then pass off from a quantity of benzine or petroleum contained within a reservoir.

The invention consists, chiefly, in the employ ment of a novel device which insures a most thorough and complete admixture of the air aud'benzine, and hence the generation of more highly-carbonized gas for a given amount of air than can be produced by the means hitherto employed.

l urthermore, the invention comprises means whereby the gas produced may be prevented from being surcharged with either of its constituents, all as will be hereinafter fully explained.

In order that others skilled in the art to which my invention appertains may be enabled to fully understand and use the same, I will proceed to describe its construction and operation.

A is a cylindrical metallic vessel, within which rises a pipe, B, the latter extending from and communicating with an oil-rescr voir, O. i

D is an air-holder, which consists of an inverted cylinder, open at bottom and closed at top, and having guides 62 to adapt it to disallow any lateral movement when occupyin g the cylinder.

thus inserted, has no communication what ever with the external air. The air contained in the holder D is forced through the pipe B into the reservoir G in such gradual manner as may be permitted by weights, which. are suspended at one of a rope which passes over pulleys upon a standard and is attached to the top of the airholder. This contrivance is indicated by the red lines in Fig. 2, and is common in gas apparatuses generally. The pipe is opened and closed at will by a cock, B, lo cated at a suitable point between the vessel A and reservoir G. The pipeB communicates with the reservoir 0 at the under side and vertical center, so that as the air passes from the pipe into the reservoir it will ascend into an inverted cup, E, which is suspended within the reservoir so as to be partially submerged in the fluid contained therein. This cup is of such size that between its edges and the sides of the reservoir will exist a space, as shown at e e. Now, when the air enters the reservoir C from the pipe B it does not pass immediately through the oil, but is collected within or beneath the cup E, and is thereby retained until thoroughly carbonized, when it is discharged around the edges of the cup.

The most efiectual carbonization of the oil is the result of the use of a retainer or cup of the above description, inasmuch as the air is caused to remain within the body of oil and to pass therefrom in an indirect course, whereas in apparatuses of this class hitherto devised the air is allowed to pass through and be dis charged from the oil with scarcely any interception. The oil is introduced into the reser voir through a pipe, F, and the refuse drawn oft at the cock G.

The gas, after being formed in the manner described, ascends to the upper part of the reservoir, passes into the pipe H, and is con sumed at the burner. (Indicated by red lines.)

In order to increase the proportion of oxy gen in the gas, I employ a pipe, I, which communicates with the pipe B, and when opened by the cock I discharges air into the reservoir at apoint below the surface oftheliquidtherein, but above the edges of the cup E. The advantage derived from the employment of this pipe is, that whileit constitutes a medium for red noin g the carbon proportionably it serves to produce gas, which,being carbonized, (though but slightly,) is better adapted than the air alone to regulate that which is consumed.

In the top of the cup E is an opening, which, under ordinary circumstances, is closed by a valve, J, upon the lower end of the stem J, the latter passing through the top of the reservoir, and having upon its projecting end a socket, J which fits over and works vertically upon a screw-threaded stem, J

If the gas should be so highly carbonized as to produce smoke in burning, this may be effectually and instantly remedied by turning the socket J 2 so as to elevate the valve J, and thus unclose the opening in the top of the cup E, which permits the air from the pipe B to pass directly upward through the oil without being retained and becoming highly carbonized.

The air-holder D descends by gravitation, and after it has become exhausted it is only necessary to elevate the same by the handle 1), a valve, d, being so arranged as to open and admit air into the holder on the raising of the latter, and to close and remain closed as it descends. I

Having thus described my invention, the following is what I claim as new therein and desire to secure by Letters Patent:

The combination of theinverted bowl or open mouthed chamber E with the air-discharging pipe B beneath it, substantially as and for the purpose described.

The above specification of my improvement in the generators of gas apparatuses signed this 6th day of August, 1864.

H. L. MO AVO Y.

Witnesses:

CHARLES D. SMITH, T. SOHEITLIN. 

